[enchancement] take inspiration from others

Issue aims to host inspiration from other websites for this one:
1. "Currently thinking about" section in the home page (nickbostrom.com)
2. "Though in detail" section.
3. Stackoverflow's timeline: https://stackoverflow.com/story/atb00ker

Start by reviewing the portfolio home page and the examples linked in the issue, including the Stack Overflow timeline and nickbostrom.com. Decide which inspiration is in scope, identify the relevant homepage files, and define the content and layout that should be added before implementation. Done means the selected sections are integrated into the portfolio and match an agreed design.

Written by the indexing model from the issue text.